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脉冲振幅调制属于（ ）
分类: 通信专业业务
发布时间: 2023-11-19 12:31
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脉冲振幅调制属于（ ）
A.A、数字调制
B.B、模拟调制
C.C、频率调制
D.D、相位调制
正确答案是A
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